Sandra and her husband raised Travis like a son -- which made the tragedy on Monday much more painful for her, as she was forced to stab the chimpanzee in an attempt to save her friend. "I went and had to get a knife," Herold says of her efforts to save Charla. "I had to... He looked at me like, 'Mom, what did you do?'" The chimp was eventually shot and killed by police.

Actress Morgan Fairchild co-starred with Travis in an Old Navy commercial. She tells "Extra" that the chimp never exhibited aggressive behavior on the set. "I have a great still photograph of us sitting there with his arm around me just being absolutely adorable like your average 5-year-old."

"I think she is heartbroken," Fairchild says of Herold. "These are very smart animals." Despite her interaction with the chimp, Morgan admits that killing it to save Charla was the right thing to do. "It is a shame, it is a sin that this animal had to be destroyed," she explains. "Considering the circumstances, I think it should have been killed, but wild animals should never be kept as pets because it's always going to act like a wild animal."

Animal Planet's Dave Salmoni agrees with Fairchild, saying, "You cannot raise a chimpanzee as a baby and try to make it domesticated and think, 'Well, if I love it enough, it's not going to attack.'"